New efficient synthesis of 4-aminocarbonyl substituted 4H-3,1-benzoxazines by a Passerini 3CC/Staudinger/aza-Wittig sequence

DOI: 10.1016/j.tet.2009.08.022

Source and publish data:

Tetrahedron p. 8563 - 8570 (2009)

Update date:2022-08-02

Topics:

Authors:

He, Ping

Wu, Jing

Nie, Yi-Bo

Ding, Ming-Wu

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Article abstract of DOI:10.1016/j.tet.2009.08.022

α-Acyloxy-carboxamide azides 1, obtained from Passerini reaction of easily accessible o-azidobenzaldehyde with isocyanides and carboxylic acids, reacted with triphenylphosphine to give various 4-aminocarbonyl substituted 4H-1,3-benzoxazines 3 in moderate

Full text of DOI:10.1016/j.tet.2009.08.022

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